Daniamant L7A Instructies voor installatie en onderhoud - Pagina 2
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Installation
The L7A lifejacket light is for use on solid foam, easy to don lifejackets only. The lamp housing may be
fitted only by the lifejacket manufacturer, as specialised tools are required; the light assembly may be
changed by anybody.
To fit the lamp housing, refer to the diagram opposite.
Using a sharp implement, cut a hole 40 mm diameter by 85 mm deep in an upper corner of the
lifejacket in a position to ensure maximum visibility of the light when in use, ensuring that there is
sufficient foam wall thickness on the thinnest side to maintain its strength. Firmly press the
housing assembly into the hole, ensuring that the teeth grip the material around the hole to
prevent it being pulled from under the housing.
To fit the lamp assembly:
1.
Clip the light assembly into the housing, orientating the lead position into one of the
clearance grooves in the housing.
2.
Route the sensor lead to the bottom of the lifejacket to ensure that the sensor is under water
when in use, attaching the lead at several points to ensure that it will be secure in use.
Operation
The L7A light is switched on automatically when the sensor is immersed in water; no user action is
required.
Maintenance
Routine service
L7A units are maintenance free, but the following checks should be made annually:
1.
Inspect light for signs of damage or corrosion, if damage or corrosion visible, the unit is to be
replaced.
2.
Test the light by immersing the sensor in water. The light must flash.
Remove the sensor from the water and dry it. The light must stop flashing.
Ensure that the sensor is in the "closed" position, as shown below.
Life
The life of the L7A batteries is five years from the date of manufacture; the expiry date is shown on the
label affixed to the L7A. At the expiry date marked on the light, the removable light unit must be
replaced. Replacement lights are available from the manufacturer of the lifejacket.
1. Carefully detach the light unit by unclipping it from the permanent housing.
2. Free the sensor lead from its attachment points on the lifejacket.
3. Remove the light unit and dispose of it correctly
4. Fit the replacement light assembly as detailed under Installation.
Switching
IMO regulations require that a flashing light can be switched off. Accordingly, for approval purposes
the light may be extinguished by rotating the two halves of the sensor body, as shown below.
WARNING: the light will not operate when the sensor is "open"; operation requires that the
sensor is "closed" AND immersed in water. Other than for testing, the sensor must always be
in the "closed" position. Do not tamper with the sensor.
L7A ON
"Closed"
L7A OFF
"Open"
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